I had the same experience... I have another webcomic called Tripp that is full color, plot-oriented, the whole shebang. Then I had this idea for Cautionary Tales that seemed almost too easy. I ran into the same issue with the silhouettes. It's not as easy as I thought it would be at all.

It still takes a fraction of the time of a Tripp strip though, which was sort of the point. :)